Irregular Plurals

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Across
  1. 2. men
  2. 4. woman
  3. 7. wives
  4. 8. teeth
  5. 9. echoes
  6. 11. leaves
  7. 12. feet
Down
  1. 1. knives
  2. 3. tomatoes
  3. 5. deer
  4. 6. children
  5. 10. heroes